package com.example.rotorm;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import android.app.Activity;
import android.content.Context;
import android.hardware.Camera;
import android.hardware.Camera.AutoFocusCallback;
import android.hardware.Camera.PictureCallback;
import android.hardware.Camera.ShutterCallback;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.util.Log;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnLongClickListener;
import android.view.ViewGroup.LayoutParams;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.FrameLayout;


//why is it so hard to put an eclipse project into git
//http://developer.android.com/guide/topics/media/camera.html

public class CameraActivity extends Activity {
    public static final String TAG = "rotorM";
	Preview preview;
	Button buttonClick;
	Camera camera;
	String fileName;
	Activity act;
	Context ctx;
	boolean isRecording;
	MediaRecorder mMediaRecorder;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		ctx = this;
		act = this;
		requestWindowFeature(Window.FEATURE_NO_TITLE);
		getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

		setContentView(R.layout.main);
		
		preview = new Preview(this, (SurfaceView)findViewById(R.id.surfaceView));
		preview.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
		((FrameLayout) findViewById(R.id.preview)).addView(preview);
		preview.setKeepScreenOn(true);
		
		buttonClick = (Button) findViewById(R.id.buttonClick);
		
		buttonClick.setOnClickListener(new OnClickListener() {
			public void onClick(View v) {
				//				preview.camera.takePicture(shutterCallback, rawCallback, jpegCallback);
				//camera.takePicture(shutterCallback, rawCallback, jpegCallback);
				if (isRecording) {
	                // stop recording and release camera
	                mMediaRecorder.stop();  // stop the recording
	                releaseMediaRecorder(); // release the MediaRecorder object
	                camera.lock();         // take camera access back from MediaRecorder

	                // inform the user that recording has stopped
	                setCaptureButtonText("Capture");
	                isRecording = false;
	            } else {
	                // initialize video camera
	                if (prepareVideoRecorder()) {
	                    // Camera is available and unlocked, MediaRecorder is prepared,
	                    // now you can start recording
	                    mMediaRecorder.start();

	                    // inform the user that recording has started
	                    setCaptureButtonText("Stop");
	                    isRecording = true;
	                } else {
	                    // prepare didn't work, release the camera
	                    releaseMediaRecorder();
	                    // inform user
	                }
	            }
			}
		});
		
		buttonClick.setOnLongClickListener(new OnLongClickListener(){
			@Override
			public boolean onLongClick(View arg0) {
				camera.autoFocus(new AutoFocusCallback(){
					@Override
					public void onAutoFocus(boolean arg0, Camera arg1) {
						//camera.takePicture(shutterCallback, rawCallback, jpegCallback);
					}
				});
				return true;
			}
		});
	}

	@Override
	protected void onResume() {
		super.onResume();
		//      preview.camera = Camera.open();
		camera = Camera.open();
		camera.startPreview();
		preview.setCamera(camera);
	}
/*
	@Override
	protected void onPause() {
		if(camera != null) {
			camera.stopPreview();
			preview.setCamera(null);
			camera.release();
			camera = null;
		}
		super.onPause();
	}
	*/
	
	@Override
    protected void onPause() {
        super.onPause();
        releaseMediaRecorder();       // if you are using MediaRecorder, release it first
        releaseCamera();              // release the camera immediately on pause event
    }

    private void releaseMediaRecorder(){
        if (mMediaRecorder != null) {
            mMediaRecorder.reset();   // clear recorder configuration
            mMediaRecorder.release(); // release the recorder object
            mMediaRecorder = null;
            camera.lock();           // lock camera for later use
        }
    }

    private void releaseCamera(){
        if (camera != null){
            camera.release();        // release the camera for other applications
            camera = null;
        }
    }

	private void resetCam() {
		camera.startPreview();
		preview.setCamera(camera);
	}
/*
	ShutterCallback shutterCallback = new ShutterCallback() {
		public void onShutter() {
			// Log.d(TAG, "onShutter'd");
		}
	};

	PictureCallback rawCallback = new PictureCallback() {
		public void onPictureTaken(byte[] data, Camera camera) {
			// Log.d(TAG, "onPictureTaken - raw");
		}
	};

	PictureCallback jpegCallback = new PictureCallback() {
		public void onPictureTaken(byte[] data, Camera camera) {
			FileOutputStream outStream = null;
			try {
				// Write to SD Card
				fileName = String.format("/sdcard/camtest/%d.jpg", System.currentTimeMillis());
				outStream = new FileOutputStream(fileName);
				outStream.write(data);
				outStream.close();
				Log.d(TAG, "onPictureTaken - wrote bytes: " + data.length);

				resetCam();

			} catch (FileNotFoundException e) {
				e.printStackTrace();
			} catch (IOException e) {
				e.printStackTrace();
			} finally {
			}
			Log.d(TAG, "onPictureTaken - jpeg");
		}
	};
	*/
}